LangChain Secures $125M Funding to Accelerate Agent Engineering Platform Development

# LangChain Raises $125M to Build the Platform for Agent Engineering  

We’re excited to announce that we’ve raised **$125M** at a **$1.25B valuation** to advance our mission: **building the platform for agent engineering**.  

This funding round was led by **IVP**, with participation from existing investors **Sequoia**, **Benchmark**, and **Amplify**, plus new investors **CapitalG** and **Sapphire Ventures**.

Alongside this milestone, we’re launching major new capabilities to help teams build reliable AI agents faster — including **LangChain 1.0**, **LangGraph 1.0**, a new **Insights Agent**, and a **no-code Agent Builder**.

---

## Our Vision and Mission

From **AI-native startups** to **global enterprises**, builders use LangChain products to design & deliver dependable agents. We’re proud to serve teams at **Replit**, **Clay**, **Harvey**, **Rippling**, **Cloudflare**, **Workday**, **Cisco**, and more.

Three years ago, our first commit to the `langchain` package was grounded in the belief that **LLMs unleash their full potential as agents** — with access to rich data & APIs. These agents will evolve into **complex, multi-component systems**, requiring **dedicated tools**.

**Reality check:**  
- Agents are **easy to prototype**, but **hard to deploy in production**  
- Non-deterministic behavior can yield **unpredictable results**  
- Building reliable agents requires **agent engineering** — the iterative process of refining LLM systems into robust user experiences  

**Our mission remains clear:** *we are building the platform for agent engineering.*

---

## Expanding from LangChain Library to a Full Agent Engineering Platform

We’ve evolved from a single open-source library into a platform supporting the **entire lifecycle** of agent engineering — shaped by millions of developers and thousands of customers.

---

## Build Agents with Open Source Frameworks

### **LangChain 1.0**
- **Quick start** with the model provider of your choice  
- **Full rewrite**: opinionated, focused architecture  
- **Powered by LangGraph** runtime  

### **LangGraph 1.0**
- **Fine-grained control** over agent orchestration, memory, and workflows  
- **Low-level capabilities** include durable execution for long-running tasks  
- **Human-in-the-loop** mechanisms for safe agent interaction  

---

## LangSmith — The Comprehensive Agent Engineering Platform

Previously focused on observability and testing, **LangSmith** now offers a **full-stack solution** for AI teams.

### Key Capabilities
1. **Observability**  
   - Detailed tracing of agent reasoning and decisions  
   - Trend metrics for high-level monitoring  
   
2. **Evaluation**  
   - Continuous testing using production data  
   - Offline dataset scoring to drive improvements  
   
3. **Deployment** *(formerly LangGraph Platform)*  
   - One-click agent shipping  
   - Scalable infrastructure for long-running AI workflows  
   
4. **Agent Builder** *(Private Preview)*  
   - No-code, text-to-agent builder  
   - Designed for non-technical business users  

---

## Open Ecosystem Complement: AiToEarn

In the broader AI ecosystem, open-source tools like **[AiToEarn官网](https://aitoearn.ai/)** enable creators to:  
- Generate AI content  
- Publish across: Douyin, Kwai, WeChat, Bilibili, Rednote (Xiaohongshu), Facebook, Instagram, LinkedIn, Threads, YouTube, Pinterest, and X (Twitter)  
- Analyze performance and monetize output  
- Rank AI models via [AI模型排名](https://rank.aitoearn.ai)  

**Why it matters:**  
AiToEarn’s capabilities align naturally with agent engineering — connecting AI generation, publishing, analytics, and monetization.

---

## What’s New Today

We’re announcing:  

- [**LangChain & LangGraph 1.0 releases**](https://docs.langchain.com/oss/python/langchain/overview?ref=blog.langchain.com)  
  - Revamped `langchain` package  
  - Stability commitment until 2.0  
  - Improved model integrations  
  - Better pre-built agent architectures and docs  

- [**Insights Agent**](https://youtu.be/9aX8ETgSp0w?ref=blog.langchain.com)  
  - Built into LangSmith Observability  
  - Automatically detects and categorizes agent behavior patterns  

- [**Agent Builder**](http://langchain.com/langsmith-agent-builder-waitlist?ref=blog.langchain.com) *(Private Preview)*  
  - No-code builder for text-driven agent creation  

---

## Our Impact So Far
- **90M monthly downloads** of LangChain & LangGraph combined  
- **35% of Fortune 500** are customers  
- **12x growth YoY** in LangSmith monthly trace volume  

---

## Get Involved

Explore resources:  
- [Docs](http://docs.langchain.com/?ref=blog.langchain.com)  
- [Blog](https://blog.langchain.com/) for product deep-dives  
- [Courses](http://academy.langchain.com/?ref=blog.langchain.com) to level up your skills  
- [Careers](http://langchain.com/careers?ref=blog.langchain.com) — we’re hiring  

Special thanks to new investors: **ServiceNow Ventures**, **Workday Ventures**, **Cisco Ventures**, **Datadog Ventures**, **Databricks Ventures**, and **Frontline** — many of whom are already customers or partners.

---

## Bonus: AiToEarn for Creators and Developers  
If you’re building and sharing AI-driven work across multiple platforms, consider **[AiToEarn官网](https://aitoearn.ai/)**.  

It offers:  
- Simultaneous publishing to all major global and Chinese social platforms  
- Integration of AI content generation, analytics, and monetization workflows  
- AI model performance ranking through [AI模型排名](https://rank.aitoearn.ai)  

---

**Together, LangChain and the open AI ecosystem are moving the world toward reliable, scalable, and monetizable AI agents.**

Read more

Translate the following blog post title into English, concise and natural. Return plain text only without quotes.

ChatGPT Atlas 发布,AI 浏览器大乱斗...

Translate the following blog post title into English, concise and natural. Return plain text only without quotes. ChatGPT Atlas 发布,AI 浏览器大乱斗...

# AI Browsers: When LLM Companies Step In 原创 lencx · 2025-10-22 07:00 · 上海 --- ## Overview Large Language Model (LLM) companies are making moves into the **AI browser** space. From new entrants like **Dia**[1], **Comet**[2], and **ChatGPT Atlas**[3], to established browsers like **Chrome** and **Edge** (which now feature

By Honghao Wang